CRDN Ceradyne, Inc. (MM)

Ceradyne, Inc. (Company) (Nasdaq: CRDN) will host a financial analyst day on June 5, 2006, including a live webcast of management's presentations and question-and-answer session. The event will feature a tour of Ceradyne's facilities in Costa Mesa and Irvine, California, and presentations by Chief Executive Joel Moskowitz, Chief Financial Officer Jerrold Pellizzon, President of North American Operations David Reed, Chief Technology Officer Dr. Thomas Juengling, President of ESK Ceramics Dr. Peter Hartl, Vice President of Armor Operations Marc King, and Vice President of Sales and Marketing and Business Development Michael Kraft. The presentations will be followed by a formal Q&A session. The webcast is scheduled to begin with management presentations from 11:00 a.m. to 12:30 p.m. PDT (2:00 p.m. to 3:30 p.m. EDT) and will include accompanying slides. The webcast will continue with the Q&A session from 12:30 p.m. to approximately 1:00 p.m. PDT. The webcast will be available on the events calendar of the investor relations section of Ceradyne's website at www.ceradyne.com. A replay will be archived on the site; slides in PDF format will also be posted on the site. Ceradyne develops, manufactures and markets advanced technical ceramic products and components for defense, industrial, automotive/diesel and commercial applications. Additional information can be found at the Company's web site: www.ceradyne.com. Except for the historical information contained therein, the information provided in the presentations, slides, and question-and-answer session contain forward-looking statements regarding future events and the future performance of Ceradyne that involve risks and uncertainties that could cause actual results to differ materially from those projected. Words such as "anticipates," "believes," "plans," "expects," "intends," "future," and similar expressions are intended to identify forward-looking statements. These risks and uncertainties are described in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2005 and its Quarterly Reports on Form 10-Q as filed with the U.S. Securities and Exchange Commission.